US3421890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fused corrosion resistant cobalt-chromium alloy
Assignee: Gebrueder Boehler and Co AG
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Filing: 1966-08-29
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Granted: 1969-01-14
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Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Anton Baumel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3046; B23K35/32; B23K35/327; C; C22; C22C; C22C19/00; C22C19/07; C22C27/00; C22C27/06; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/067; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536033A
Cited
US2536034A
Cited
GB809088A
Cited
US3147542A
Cited
US3149411A
Cited
US3307939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |